These machine needles are made of material, they are durable and sturdy for a long lifetime. Items include six size sewing machine needles, suitable for most sewing machines. Durable and practical replacement needles supplies. Features - Color: Assorted. - Material: Alloy. - Size: About 5.5x3x0.1cm/2.17x1.18x0.04 inch. - These machine needles are made of material, they are durable and sturdy for a long lifetime. - Universal regular point sewing machine needles for most woven fabrics. - Hard structure sewing machine needles not easy to bend. - Standard size sewing machine needles with a flat shank, suitable for most home sewing machines. - Items includes: Size 9 for Thin fabrics (such as silk fabrics); Size 11 and Medium to thin fabrics (such as shirts, undershirts and silk fabrics); Size 14 for medium to thick fabric (such as spring and autumn coat fabric); Size 16 for Thick fabric (such as jeans); Size 18 for thickened fabrics (such as thick fabrics with cotton), 60 Pcs Sewing Needle in Total. Package list: 60 x sewing machine needles